EP0830180B1 - Atemschutzmaske mit versteifungseinsätzen - Google Patents

Atemschutzmaske mit versteifungseinsätzen Download PDF

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Publication number
EP0830180B1
EP0830180B1 EP96915657A EP96915657A EP0830180B1 EP 0830180 B1 EP0830180 B1 EP 0830180B1 EP 96915657 A EP96915657 A EP 96915657A EP 96915657 A EP96915657 A EP 96915657A EP 0830180 B1 EP0830180 B1 EP 0830180B1
Authority
EP
European Patent Office
Prior art keywords
facepiece
respiratory mask
stiffening elements
stiffening
exhalation valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96915657A
Other languages
English (en)
French (fr)
Other versions
EP0830180A1 (de
Inventor
Paul X. Freund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Publication of EP0830180A1 publication Critical patent/EP0830180A1/de
Application granted granted Critical
Publication of EP0830180B1 publication Critical patent/EP0830180B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks

Definitions

  • the present invention relates to respirator masks worn on a user's face for protection against gases, vapors and particulates, and more particularly to a half-mask respirator.
  • respirators have a facepiece made of a soft compliant material, typically rubber, that rests against the wearer's face and forms a seal in conjunction with the wearer's facial skin.
  • Some respirators are made of thick rubber to support the filters and exhalation valve attached thereto. See , e.g. , U.S. Patent Nos. 2,652,828 (Matheson) and 4,155,358 (McAllister et al.). Thick rubber can make the respirator heavy and uncomfortable to wear. Additionally, the thicker the rubber, the more costly it is to manufacture the respirator due to the increased material costs. If the rubber is made thinner, the mask tends to collapse onto the user's face, particularly while tightening the harness after donning the respirator. U.S.
  • Patent No. 5,062,421 (Burns) describes a respirator mask which incorporates a large single insert that serves as a structural member to support the facepiece.
  • the disadvantage with the Burns respirator is that it is not flexible enough to provide a comfortable fit over a wide range of face sizes.
  • EP-0309277A describes a respiratory mask having a facepiece formed of a flexible material with semi-rigid filtration elements included therein such that they form part of the facepiece.
  • respirator mask It is desirable to provide a better fitting, lightweight respirator mask with a firm but flexible facepiece, that is more versatile and economical to make than existing respirator masks. Similarly, the respirator mask should be comfortable to wear for extended periods of time without collapsing on the user's face.
  • the present invention provides a very comfortable and lightweight respirator mask having a soft compliant facepiece with more than one stiffening elements integrated therein.
  • a soft compliant facepiece with more than one stiffening elements integrated therein.
  • the integral stiffening elements are made of a lightweight rigid material, preferably a plastic such as polypropylene, and are joined by a flexible material, preferably thermoplastic rubber, such that the facepiece is flexible enough to provide a comfortable seal on the wearer's face but stiff enough to preclude collapse against the wearer's face.
  • the respirator further comprises a yoke featuring a centered exhalation valve cover.
  • the yoke wraps around the facepiece and has apertures that correspond to those in the stiffening elements.
  • the filter cartridges are preferably attached to a connection on the appropriate stiffening elements.
  • a harness is attached to the yoke to position and secure the respirator on the wearer's head. Such harness may be attached to the yoke by apertures on each arm of the yoke.
  • Respirator facepiece 10 preferably comprises three stiffening elements 20, 30, and 40, respectively, made of a lightweight material, preferably a moldable plastic, and more preferably polypropylene or glass filled polypropylene, which are held together by a thermoplastic rubber 50, preferably one that has polypropylene in it such as baton, starflex or sanoprene.
  • Two of the stiffening elements 20 and 30 comprise the sides of the facepiece, are mirror images of each other, and are shaped substantially like teardrops with generally circular apertures 21 and 31, respectively, located in the base of the teardrop.
  • the stiffening elements are bonded at their outer edge to ensure a seal with the rubber.
  • the stiffening elements may be slightly curved to better accommodate facial features.
  • the apertures 21 and 31 in the side stiffening members 20 and 30 are of sufficient size to accommodate commercially available filter cartridges and are adjacent to a connector for attaching such filters to the stiffening elements.
  • the side stiffening members possess flanges 22, 23, 24, 32, 33 and 34 for mating with the flanges of such filter cartridges.
  • the center stiffening member 40 is generally rectangular in shape, preferably with one end 41 being slightly narrower than the other end 42, and having an aperture 43 substantially centered from the sides of the rectangle 44 and 45 and located closer to the longer end of the rectangle.
  • the aperture 43 in the center member is preferably circular and of sufficient size to accommodate an exhalation valve therein.
  • the flexible material 50 of the facepiece is preferably a thermoplastic rubber that has polypropylene in it.
  • it is made by injection molding using a cavity conforming to the desired shape of the facepiece and adapted to accommodate positioning the stiffening elements 20, 30, and 40 in their final desired positions in the facepiece.
  • the center member 40 is positioned in the mold with the narrower end 41 of its rectangular shape on top and between the points of the two teardrop shaped side member 20 and 30 such that after molding the side members may move in hinge-like fashion in relation to the center member.
  • each stiffening element is mechanically bonded to the rubber so that it can move relative to the adjacent stiffening elements and thereby provide the needed flexibility.
  • the configuration of the mold, and the positioning of the stiffening elements therein permits the thermoplastic rubber to completely surround each edge of every stiffening element, including the aperture edge, such that the stiffening elements are separated from one another by a strip of thermoplastic rubber, and each aperture in the side stiffening members is encased by the thermoplastic rubber so as to be able to form a friction fit with a filter cartridge.
  • flexible materials include hycar or silicon rubber. Of course, one would have to use a primer with these materials to achieve a chemical bond between the rubber and the stiffening elements.
  • a yoke 60 is typically placed on top of the facepiece 10.
  • the yoke is made of a semi-rigid material, preferably plastic. When the respirator is assembled, the yoke is centered on and extends across the exterior surface of the facepiece. In the center of the yoke is an exhalation valve cover 61 that mates with the exhalation valve aperture 43 of the facepiece.
  • the yoke has two halves 62 that extend from opposing sides of the exhalation valve cover 61. Each half 62 of the yoke has a substantially circular aperture (not shown) that complements the corresponding substantially circular filter cartridge aperture 21 and 31 on the facepiece 10.
  • each half 62 of the yoke 60 From each half 62 of the yoke 60 extend two prongs 67 and 68 that contain openings 64 and 65 at the end of each prong for receiving a harness 70 that will position and secure the facepiece 10 and yoke 60 to head of the wearer.
  • the harness 70 preferably consists of three adjustable elastic straps 71, 72 and 73 that are attached to the yoke 60.
  • the top straps 71, 72 of the harness are attached to two strips of plastic that form a headband 74 which fits over the crown of the wearer's head.
  • An adjustable bottom strap 73 fits around the wearer's neck and is threaded through an aperture 65 in the yoke. The wearer may adjust the fit of the respirator mask by tightening or loosening the elastic straps. Such adjustments may be made while the respirator mask is worn.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (16)

  1. Atemschutzmaske, die ein Gesichtsteil (10) mit an diesem angebrachten Filtereinsätzen aufweist, bei der das Gesichtsteil ein flexibles Material (50) sowie ein Filtereinsatz-Anschlussstück (20, 30) und ein Ausatemventil, die steifer als das flexible Material sind und die mit dem flexiblen Material verbunden sind, umfasst, dadurch gekennzeichnet, dass das Filtereinsatz-Anschlussstück und das Ausatemventil Teil einer Mehrzahl von Versteifungselementen (20, 30, 40) sind, derart, dass jedes Versteifungselement über mindestens eine im wesentlichen gerade Kante verfügt, wobei die benachbarten geraden Kanten von benachbarten Versteifungselementen im Wesentlichen parallel verlaufen, um durch das flexible Material eine gelenkartige Verbindung zu schaffen.
  2. Atemschutzmaske nach Anspruch 1, dadurch gekennzeichnet, dass drei Versteifungselemente (20, 30, 40) vorgesehen sind.
  3. Atemschutzmaske nach Anspruch 2, dadurch gekennzeichnet, dass die drei Versteifungselemente zwei seitliche Versteifungselemente (20, 30) mit jeweils einer Öffnung (21, 31) und einem Anschlussstück zur Aufnahme eines Filtereinsatzes und ein mittleres Versteifungselement (40) mit einer Öffnung (43) zur Aufnahme eines Ausatemventils umfassen.
  4. Atemschutzmaske nach Anspruch 3, dadurch gekennzeichnet, dass das jeweilige seitliche Versteifungselement (20, 30) im Großen und Ganzen tropfenförmig und das mittlere Versteifungselement (40) im Großen und Ganzen länglich mit einer rechteckigen Seite ausgebildet sind.
  5. Atemschutzmaske nach Anspruch 2, dadurch gekennzeichnet, dass die Versteifungselemente aus einem Plastikmaterial bestehen.
  6. Atemschutzmaske nach Anspruch 5, dadurch gekennzeichnet, dass das Plastikmaterial Polypropylen ist.
  7. Atemschutzmaske nach Anspruch 2, dadurch gekennzeichnet, dass das flexible Material ein thermoplastischer Gummi ist.
  8. Atemschutzmaske nach Anspruch 7, dadurch gekennzeichnet, dass das flexible Material ein thermoplastischer Gummi mit Polypropylen in diesem ist.
  9. Atemschutzmaske nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein mit dem Gesichtsteil verbundenes Ausatemventil und eine mit dem Gesichtsteil verbundene Bänderung (70).
  10. Atemschutzmaske nach Anspruch 3, dadurch gekennzeichnet, dass das Anschlussstück eine Mehrzahl von Flanschen (22, 23, 24, 32, 33, 34) für einen bajonettartigen Montagemechanismus umfasst, der mit einer Mehrzahl von Flanschen an dem Filteranschluss zusammenpasst.
  11. Gesichtsteil für eine Atemschutzmaske, das eine Mehrzahl Plastikteile (20, 30, 40) umfasst, die durch einen flexiblen Gummi miteinander verbunden sind, dadurch gekennzeichnet, dass das jeweilige Plastikteil ein Versteifungselement umfasst, das mindestens eine im wesentlichen gerade Kante zu benachbarten geraden Kanten von benachbarten Versteifungselementen hat, die im Wesentlichen parallel verlaufen, um über den flexiblen Gummi eine gelenk-artige Verbindung zu schaffen.
  12. Gesichtsteil nach Anspruch 11, dadurch gekennzeichnet, dass der flexible Gummi mechanisch mit jedem Plastik-Versteifungselement verbunden ist und dieses vollständig umgibt.
  13. Gesichtsteil nach Anspruch 11, dadurch gekennzeichnet, dass drei Versteifungselemente vorhanden sind.
  14. Gesichtsteil nach Anspruch 13, dadurch gekennzeichnet, dass die drei Versteifungselemente zwei seitliche Versteifungselemente (20, 30) mit jeweils einer Öffnung (21, 31) und einem Verbindungsstück zur Aufnahme eines Filtereinsatzes und ein mittleres Versteifungsteil (40) mit einer Öffnung (43) zur Aufnahme eines Ausatemventils umfassen.
  15. Gesichtsteil nach Anspruch 14, dadurch gekennzeichnet, dass jedes seitliche Versteifungselement im Großen und Ganzen tropfenförmig ausgebildet ist.
  16. Gesichtsteil nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass das mittlere Versteifungsteil im Großen und Ganzen länglich mit einer rechteckigen Seite ausgebildet ist.
EP96915657A 1995-06-07 1996-05-09 Atemschutzmaske mit versteifungseinsätzen Expired - Lifetime EP0830180B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US485172 1995-06-07
US08/485,172 US5592937A (en) 1995-06-07 1995-06-07 Respirator mask with stiffening elements
PCT/US1996/006619 WO1996040370A1 (en) 1995-06-07 1996-05-09 Respirator mask with stiffening elements

Publications (2)

Publication Number Publication Date
EP0830180A1 EP0830180A1 (de) 1998-03-25
EP0830180B1 true EP0830180B1 (de) 2002-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96915657A Expired - Lifetime EP0830180B1 (de) 1995-06-07 1996-05-09 Atemschutzmaske mit versteifungseinsätzen

Country Status (7)

Country Link
US (1) US5592937A (de)
EP (1) EP0830180B1 (de)
JP (1) JP4195085B2 (de)
CN (1) CN1092530C (de)
AU (1) AU5738196A (de)
DE (1) DE69619980T2 (de)
WO (1) WO1996040370A1 (de)

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US9119931B2 (en) 2008-03-04 2015-09-01 Resmed Limited Mask system
US9561338B2 (en) 2010-10-08 2017-02-07 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
US10252015B2 (en) 2004-02-23 2019-04-09 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US10258757B2 (en) 2008-05-12 2019-04-16 Fisher & Paykel Healthcare Limited Patient interface and aspects thereof
US10328226B2 (en) 2008-05-12 2019-06-25 Fisher & Paykel Healthcare Limited Patient interface and aspects thereof
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US11554234B2 (en) 2008-07-18 2023-01-17 Fisher & Paykel Healthcare Limited Breathing assistance apparatus

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CN101784305B (zh) 2007-08-31 2013-10-23 3M创新有限公司 具有模制热固性弹性体构件的一体式呼吸器
BRPI0815322B8 (pt) * 2007-08-31 2018-10-16 3M Innovative Properties Co "componente de conexão para respirador e máscara para proteção respiratória"
US9868001B2 (en) 2007-10-05 2018-01-16 3M Innovative Properties Company Respirator flow control apparatus and method
PL2537560T3 (pl) 2007-11-12 2019-09-30 3M Innovative Properties Company Zespół respiratora z regulacją kierunku przepływu powietrza
DE102007055241B4 (de) * 2007-11-16 2009-10-29 Msa Auer Gmbh Atemschutz-Halbmaske mit einem Maskenkörper
KR100973967B1 (ko) * 2008-04-24 2010-08-05 삼공물산 주식회사 마스크
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ES2652561T3 (es) 2008-10-10 2018-02-05 Fisher & Paykel Healthcare Limited Almohadillas nasales para una interfaz de paciente
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US20120260920A1 (en) * 2011-04-15 2012-10-18 3M Innovative Properties Company Face mask having welded thermoplastic mask body
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
USD720846S1 (en) 2011-05-12 2015-01-06 Intersurgical Ag Breathing mask
GB2558799B8 (en) 2012-08-08 2019-04-10 Fisher & Paykel Healthcare Ltd Headgear for patient interface
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USD746439S1 (en) 2013-12-30 2015-12-29 Kimberly-Clark Worldwide, Inc. Combination valve and buckle set for disposable respirators
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USD1006216S1 (en) * 2020-05-08 2023-11-28 Lorin Kaywood Respirator face mask
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US10252015B2 (en) 2004-02-23 2019-04-09 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US9962511B2 (en) 2008-03-04 2018-05-08 Resmed Limited Mask system with snap-fit shroud
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US11833277B2 (en) 2008-03-04 2023-12-05 ResMed Pty Ltd Mask system with snap-fit shroud
US9950131B2 (en) 2008-03-04 2018-04-24 Resmed Limited Mask system with snap-fit shroud
US9119931B2 (en) 2008-03-04 2015-09-01 Resmed Limited Mask system
US11529488B2 (en) 2008-03-04 2022-12-20 ResMed Pty Ltd Mask system with snap-fit shroud
US11395893B2 (en) 2008-03-04 2022-07-26 ResMed Pty Ltd Mask system with snap-fit shroud
US9757533B2 (en) 2008-03-04 2017-09-12 Resmed Limited Mask system with snap-fit shroud
US11305085B2 (en) 2008-03-04 2022-04-19 ResMed Pty Ltd Mask system with snap-fit shroud
US11077274B2 (en) 2008-03-04 2021-08-03 ResMed Pty Ltd Mask system with snap-fit shroud
US11969552B2 (en) 2008-03-04 2024-04-30 ResMed Pty Ltd Mask system with radially positioned vent holes
US9770568B2 (en) 2008-03-04 2017-09-26 Resmed Limited Mask system with snap-fit shroud
US10751496B2 (en) 2008-03-04 2020-08-25 ResMed Pty Ltd Mask system with shroud
US10328226B2 (en) 2008-05-12 2019-06-25 Fisher & Paykel Healthcare Limited Patient interface and aspects thereof
US10258757B2 (en) 2008-05-12 2019-04-16 Fisher & Paykel Healthcare Limited Patient interface and aspects thereof
US11554234B2 (en) 2008-07-18 2023-01-17 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US9561338B2 (en) 2010-10-08 2017-02-07 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US10272218B2 (en) 2010-10-08 2019-04-30 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
USD837973S1 (en) 2017-02-23 2019-01-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly

Also Published As

Publication number Publication date
JPH11506621A (ja) 1999-06-15
DE69619980T2 (de) 2002-12-19
WO1996040370A1 (en) 1996-12-19
DE69619980D1 (de) 2002-04-25
JP4195085B2 (ja) 2008-12-10
US5592937A (en) 1997-01-14
AU5738196A (en) 1996-12-30
EP0830180A1 (de) 1998-03-25
CN1092530C (zh) 2002-10-16
CN1184434A (zh) 1998-06-10

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